【摘要】 详细介绍了用解析解法和数值解法（ 即矩阵方程的多项式解法） 分别求出了基元回路为正方形的“田”字形超导网络在外磁场中的临界温度，结果表明两种计算方法是完全等价的。并对多节点规则网络所采用的矩阵方程本征值解法的意义进行了讨论。更多还原

【Abstract】 The critical temperature of superconducting network which is composed of square unit loops in external magnetic field is solved by means of analytic method and numeric method i.e. polynomial computation of matrix equation. It is shown that two computation methods are identical . The physics meaning of eigenvalue computation of matrix equation of the regular network is also discussed .更多还原